Which of the following statements is false?
a. Crossing over tends to reduce the frequency that
two linked genes are inherited together.
b. Independent assortment of homologous
chromosomes during meiosis increases variation.
c. Crossing over leads to variation.
d. Abnormal number or structure of chromosomes
may influence the course of evolution.
e. The closer together genes are found on a
chromosome the greater the chance that crossing
over will occur between them.
Answer: e
You might also like to view...
Answer the following statements true (T) or false (F)
1. When lactose becomes available the genes encoding b-galactosidase and lactose permease are upregulated in E. coli. 2. Different globin polypeptides are expressed at similar levels during the embryonic and fetal stages of mammalian development. 3. Small effector molecules directly bind the DNA they regulate. 4. Both eukaryotes and prokaryotes require a promoter region for gene transcription. 5. A cis-effect is a form of gene regulation that can occur between two DNA segments that are not physically adjacent.
Pleomorphic bacteria
A) have a slightly curved rod shape. B) are flexible spirals. C) are both bacillus and coccobacillus in shape. D) are roughly spherical. E) vary in size and shape.
The karyotype for Klinefelter syndrome is __________.
A) XO B) XXX C) XXY D) XYY
Microaerophiles are microbes that grow best at low
A) carbon dioxide levels. B) pH values. C) hydrostatic pressure. D) oxygen levels. E) salt concentrations.